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In the preceding paper, using the so-called flow variable representation, we reported the formulation of the Korteweg-deVries (KdV) and the Burgers equations to express mass transports. The transport theories were constructed by pertaining to correspondence with the Toda lattices. Our present...
Persistent link: https://www.econbiz.de/10011057115
We study the significant entropy changes in supercooling and glass transition by developing a two (H and L) state cluster model, where the H-state represents the clusters with the coordination number z being larger than the reference size zR and the L-state those with zzR, respectively. We...
Persistent link: https://www.econbiz.de/10011061266
We present a novel method of computing the asymptotic drift velocity V and the diffusion coefficient D of a particle diffusing in an arbitrary periodic medium. We focus on a particular case of 1D systems with the nearest-neighbor transition rates and explain in detail how our method works in...
Persistent link: https://www.econbiz.de/10011062207
An efficient methodology of estimation of parameters in the diffusion coefficient of the stochastic differential equation (SDE) is presented in this work. The methodology is based on the concept of quadratic variation of a stochastic process and on some classical numerical tools such as spline...
Persistent link: https://www.econbiz.de/10010750161
Persistent link: https://www.econbiz.de/10008491565
The problems of escape from metastable state in randomly flipping potential and of diffusion in fast fluctuating periodic potentials are considered. For the overdamped Brownian particle moving in a piecewise linear dichotomously fluctuating metastable potential, we obtain the mean first-passage...
Persistent link: https://www.econbiz.de/10010589245
The mobility tensor for many spheres suspended in a viscous fluid is considered. An analytical formula for the divergence of this tensor is derived. It is then applied in calculations of long-time collective diffusion coefficient of hard-sphere suspension by means of Brownian dynamics method.
Persistent link: https://www.econbiz.de/10010590274
In this work we have shown that the tunnel effect through an unidimensional rectangular barrier can be described as a …
Persistent link: https://www.econbiz.de/10010590561
Diffusions are widely used in finance due to their tractability. Driftless diffusions are needed to describe ratios of asset prices under a martingale measure. We provide a simple example of a tractable driftless diffusion which also has a bounded state space.
Persistent link: https://www.econbiz.de/10011783753
Persistent link: https://www.econbiz.de/10014251158